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Grant Details

Grant Number: 5R03CA174984-02 Interpret this number
Primary Investigator: Chen, Lin
Organization: University Of Chicago
Project Title: Multivariate Functional Analysis of the Genetic Basis of Cancer
Fiscal Year: 2014


Abstract

DESCRIPTION (provided by applicant): The objective of the proposed research is to develop multivariate statistical methods for joint analyses of functionally related biological information n association and interaction using existing GWA data. Specifically, we propose to develop methods for joint analyzing multiple SNPs in a SNP set (e.g. a gene), and methods for jointly analyzing multivariate secondary phenotypes with potential ignorable and non-ignorable missing data. We further propose to develop methods for genome-wide gene-gene interaction analysis, in which groups of between- gene SNP-SNP correlations will be analyzed together to detect interactions. In addition, we propose to integrate a priori knowledge in our genome-wide association or interaction analyses; and we group sets of predictors by a priori knowledge and design flexible regularized regression approaches to constrain the parameter estimation and achieve efficiency. The proposed research is motivated by opportunities and needs in GWA studies, and much of our proposed work can be cost-efficiently implemented with publicly accessible GWA data for different cancers to improve our understanding of the genetic basis and disease etiology of cancer.



Publications

A MIXED-EFFECTS MODEL FOR INCOMPLETE DATA FROM LABELING-BASED QUANTITATIVE PROTEOMICS EXPERIMENTS.
Authors: Chen L.S. , Wang J. , Wang X. , Wang P. .
Source: The Annals Of Applied Statistics, 2017 Mar; 11(1), p. 114-138.
EPub date: 2017-04-08 00:00:00.0.
PMID: 29743963
Related Citations

A unified set-based test with adaptive filtering for gene-environment interaction analyses.
Authors: Liu Q. , Chen L.S. , Nicolae D.L. , Pierce B.L. .
Source: Biometrics, 2016 Jun; 72(2), p. 629-38.
PMID: 26496228
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Imputing Gene Expression in Uncollected Tissues Within and Beyond GTEx.
Authors: Wang J. , Gamazon E.R. , Pierce B.L. , Stranger B.E. , Im H.K. , Gibbons R.D. , Cox N.J. , Nicolae D.L. , Chen L.S. .
Source: American Journal Of Human Genetics, 2016-04-07 00:00:00.0; 98(4), p. 697-708.
EPub date: 2016-04-07 00:00:00.0.
PMID: 27040689
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A penalized EM algorithm incorporating missing data mechanism for Gaussian parameter estimation.
Authors: Chen L.S. , Prentice R.L. , Wang P. .
Source: Biometrics, 2014 Jun; 70(2), p. 312-22.
PMID: 24471933
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Marbled inflation from population structure in gene-based association studies with rare variants.
Authors: Liu Q. , Nicolae D.L. , Chen L.S. .
Source: Genetic Epidemiology, 2013 Apr; 37(3), p. 286-92.
PMID: 23468125
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